Kevin R Mcgahey

US Patent:

55467601, Aug 20, 1996

Filed:

Jun 7, 1995

Appl. No.:

8/487501

Inventors:

F. Bert Cook - Columbus OH
Stephen E. Petty - Dublin OH
Howard C. Meacham - Upper Arlington OH
Richard N. Christensen - Columbus OH
Kevin R. McGahey - Fairfax VA

Assignee:

Columbia Gas of Ohio, Inc. - Columbus OH

International Classification:

F25B 3300

US Classification:

62497

Abstract:

An absorption refrigeration and heating system has helical concentric coils for two generators (80 and 81) and recuperators (86 and 95) on a common axis (232) with a heating unit (84) at the center and allowing the hot combustion gases (245) to circulate in serpentine fashion through separate concentric chambers containing the coils. An absorber (97), condenser (100) and recuperator (107) are placed in a single module (270) and configured with a tube-in-tube or tube-in-cylinder construction with fluted inner tubes. A general purpose, divided-flow, tube-in-cylinder, heat-transfer device (400) is used to reduce the pressure drop in the circulating fluid.